EP 2472731 A1 20120704 - Radio communication method, radio communication system, and radio transmission apparatus
Title (en)
Radio communication method, radio communication system, and radio transmission apparatus
Title (de)
Funkkommunikationsverfahren, Funkkommunikationssystem und Funkkommunikationsvorrichtung
Title (fr)
Appareil de communication radio, système de communication radio et procédé de transmission radio
Publication
Application
Priority
- JP 2007236422 A 20070912
- EP 08831182 A 20080912
- JP 2008066532 W 20080912
Abstract (en)
A transmission apparatus comprising: a spreading section configured to spread transmission data by discrete Fourier transform to generate a first multi-carrier signal; a data selection section configured to select, based on control information, one of the first multi-carrier signal and a second multi-carrier signal that is not spread by the spreading section; and an RF section configured to transmit one of the first and second multi-carrier signals simultaneously from each of a plurality of frequency channels. An OFDM transmission apparatus comprising: a variable-spreading-factor spreading section configured to perform discrete Fourier transform on data signals to generate at least one spread signal; a sub-carrier allocation section configured to allocate the at least one spread signal to a plurality of sub-carriers; an inverse discrete Fourier transform section configured to perform inverse discrete Fourier transform on the at least one spread signal allocated; and a control section configured to control, according to the number of the at least one spread signal, a limit of a power for transmitting the data signals.
IPC 8 full level
H04B 1/69 (2011.01); H04B 1/692 (2011.01); H04B 1/707 (2011.01); H04J 13/00 (2011.01); H04J 13/20 (2011.01); H04L 5/02 (2006.01); H04L 27/26 (2006.01)
CPC (source: EP US)
H04B 1/692 (2013.01 - EP US); H04B 1/707 (2013.01 - EP US); H04B 7/15 (2013.01 - US); H04J 13/0044 (2013.01 - EP US); H04J 13/20 (2013.01 - EP US); H04L 5/0021 (2013.01 - EP US); H04L 5/026 (2013.01 - EP US); H04L 27/2615 (2013.01 - EP US); H04L 27/2636 (2013.01 - EP US); H04L 27/2647 (2013.01 - EP US); H04W 72/0446 (2013.01 - US); H04B 2201/70706 (2013.01 - EP US)
Citation (applicant)
- JP 2007151059 A 20070614 - NTT DOCOMO INC
- IEICE TRANS. COMMUN., vol. E86-B, no. 1, January 2003 (2003-01-01)
Citation (search report)
- [X] EP 1775901 A1 20070418 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- [A] US 2006039273 A1 20060223 - GORE DHANANJAY A [US], et al
- [A] NTT DOCOMO ET AL: "DFT-Spread OFDM with Pulse Shaping Filter in Frequency Domain in Evolved UTRA Uplink", 3GPP DRAFT; R1-050702 DFT-SPREAD OFDM WITH PSF IN UPLINK, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. London, UK; 20050825, 25 August 2005 (2005-08-25), XP050100352
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2190139 A1 20100526; EP 2190139 A4 20120118; EP 2190139 B1 20130911; CN 101803255 A 20100811; CN 101803255 B 20131120; CN 102685057 A 20120919; CN 102685057 B 20150617; CN 103607216 A 20140226; CN 103607216 B 20160518; EP 2472731 A1 20120704; EP 2472731 B1 20181107; JP 2012100323 A 20120524; JP 2013132068 A 20130704; JP 2015029281 A 20150212; JP 5078172 B2 20121121; JP 5830145 B2 20151209; JP WO2009035076 A1 20101224; US 2010215080 A1 20100826; US 2012213054 A1 20120823; US 2014126465 A1 20140508; US 8654751 B2 20140218; US 8681688 B2 20140325; WO 2009035076 A1 20090319
DOCDB simple family (application)
EP 08831182 A 20080912; CN 200880106377 A 20080912; CN 201210053023 A 20080912; CN 201310486578 A 20080912; EP 12001406 A 20080912; JP 2008066532 W 20080912; JP 2009532238 A 20080912; JP 2012000163 A 20120104; JP 2013024260 A 20130212; JP 2014174657 A 20140829; US 201213457298 A 20120426; US 201414153968 A 20140113; US 67774208 A 20080912